11442743 has 4 divisors (see below), whose sum is σ = 12322968. Its totient is φ = 10562520.

The previous prime is 11442737. The next prime is 11442779. The reversal of 11442743 is 34724411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34724411 = 23 ⋅1509757.

It is a cyclic number.

It is not a de Polignac number, because 11442743 - 2⁴ = 11442727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440093 + ... + 440118.

It is an arithmetic number, because the mean of its divisors is an integer number (3080742).

Almost surely, 2^11442743 is an apocalyptic number.

11442743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11442743 is a deficient number, since it is larger than the sum of its proper divisors (880225).

11442743 is an equidigital number, since it uses as much as digits as its factorization.

11442743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880224.

The product of its digits is 2688, while the sum is 26.

The square root of 11442743 is about 3382.7123732295. The cubic root of 11442743 is about 225.3426417285.

The spelling of 11442743 in words is "eleven million, four hundred forty-two thousand, seven hundred forty-three".